#define CELSIUS_TO_KELVIN(t) ((t+273)*10)
#define _COMPONENT ACPI_THERMAL_COMPONENT
-ACPI_MODULE_NAME ("acpi_thermal")
+ACPI_MODULE_NAME("acpi_thermal")
MODULE_AUTHOR("Paul Diefenbaugh");
MODULE_DESCRIPTION(ACPI_THERMAL_DRIVER_NAME);
module_param(tzp, int, 0);
MODULE_PARM_DESC(tzp, "Thermal zone polling frequency, in 1/10 seconds.\n");
-
-static int acpi_thermal_add (struct acpi_device *device);
-static int acpi_thermal_remove (struct acpi_device *device, int type);
+static int acpi_thermal_add(struct acpi_device *device);
+static int acpi_thermal_remove(struct acpi_device *device, int type);
static int acpi_thermal_state_open_fs(struct inode *inode, struct file *file);
static int acpi_thermal_temp_open_fs(struct inode *inode, struct file *file);
static int acpi_thermal_trip_open_fs(struct inode *inode, struct file *file);
-static ssize_t acpi_thermal_write_trip_points (struct file*,const char __user *,size_t,loff_t *);
+static ssize_t acpi_thermal_write_trip_points(struct file *,
+ const char __user *, size_t,
+ loff_t *);
static int acpi_thermal_cooling_open_fs(struct inode *inode, struct file *file);
-static ssize_t acpi_thermal_write_cooling_mode (struct file*,const char __user *,size_t,loff_t *);
+static ssize_t acpi_thermal_write_cooling_mode(struct file *,
+ const char __user *, size_t,
+ loff_t *);
static int acpi_thermal_polling_open_fs(struct inode *inode, struct file *file);
-static ssize_t acpi_thermal_write_polling(struct file*,const char __user *,size_t,loff_t *);
+static ssize_t acpi_thermal_write_polling(struct file *, const char __user *,
+ size_t, loff_t *);
static struct acpi_driver acpi_thermal_driver = {
- .name = ACPI_THERMAL_DRIVER_NAME,
- .class = ACPI_THERMAL_CLASS,
- .ids = ACPI_THERMAL_HID,
- .ops = {
- .add = acpi_thermal_add,
- .remove = acpi_thermal_remove,
- },
+ .name = ACPI_THERMAL_DRIVER_NAME,
+ .class = ACPI_THERMAL_CLASS,
+ .ids = ACPI_THERMAL_HID,
+ .ops = {
+ .add = acpi_thermal_add,
+ .remove = acpi_thermal_remove,
+ },
};
struct acpi_thermal_state {
- u8 critical:1;
- u8 hot:1;
- u8 passive:1;
- u8 active:1;
- u8 reserved:4;
- int active_index;
+ u8 critical:1;
+ u8 hot:1;
+ u8 passive:1;
+ u8 active:1;
+ u8 reserved:4;
+ int active_index;
};
struct acpi_thermal_state_flags {
- u8 valid:1;
- u8 enabled:1;
- u8 reserved:6;
+ u8 valid:1;
+ u8 enabled:1;
+ u8 reserved:6;
};
struct acpi_thermal_critical {
struct acpi_thermal_state_flags flags;
- unsigned long temperature;
+ unsigned long temperature;
};
struct acpi_thermal_hot {
struct acpi_thermal_state_flags flags;
- unsigned long temperature;
+ unsigned long temperature;
};
struct acpi_thermal_passive {
struct acpi_thermal_state_flags flags;
- unsigned long temperature;
- unsigned long tc1;
- unsigned long tc2;
- unsigned long tsp;
- struct acpi_handle_list devices;
+ unsigned long temperature;
+ unsigned long tc1;
+ unsigned long tc2;
+ unsigned long tsp;
+ struct acpi_handle_list devices;
};
struct acpi_thermal_active {
struct acpi_thermal_state_flags flags;
- unsigned long temperature;
- struct acpi_handle_list devices;
+ unsigned long temperature;
+ struct acpi_handle_list devices;
};
struct acpi_thermal_trips {
struct acpi_thermal_critical critical;
- struct acpi_thermal_hot hot;
+ struct acpi_thermal_hot hot;
struct acpi_thermal_passive passive;
struct acpi_thermal_active active[ACPI_THERMAL_MAX_ACTIVE];
};
struct acpi_thermal_flags {
- u8 cooling_mode:1; /* _SCP */
- u8 devices:1; /* _TZD */
- u8 reserved:6;
+ u8 cooling_mode:1; /* _SCP */
+ u8 devices:1; /* _TZD */
+ u8 reserved:6;
};
struct acpi_thermal {
- acpi_handle handle;
- acpi_bus_id name;
- unsigned long temperature;
- unsigned long last_temperature;
- unsigned long polling_frequency;
- u8 cooling_mode;
- volatile u8 zombie;
+ acpi_handle handle;
+ acpi_bus_id name;
+ unsigned long temperature;
+ unsigned long last_temperature;
+ unsigned long polling_frequency;
+ u8 cooling_mode;
+ volatile u8 zombie;
struct acpi_thermal_flags flags;
struct acpi_thermal_state state;
struct acpi_thermal_trips trips;
- struct acpi_handle_list devices;
- struct timer_list timer;
+ struct acpi_handle_list devices;
+ struct timer_list timer;
};
static struct file_operations acpi_thermal_state_fops = {
- .open = acpi_thermal_state_open_fs,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
+ .open = acpi_thermal_state_open_fs,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
};
static struct file_operations acpi_thermal_temp_fops = {
- .open = acpi_thermal_temp_open_fs,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
+ .open = acpi_thermal_temp_open_fs,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
};
static struct file_operations acpi_thermal_trip_fops = {
- .open = acpi_thermal_trip_open_fs,
- .read = seq_read,
- .write = acpi_thermal_write_trip_points,
- .llseek = seq_lseek,
- .release = single_release,
+ .open = acpi_thermal_trip_open_fs,
+ .read = seq_read,
+ .write = acpi_thermal_write_trip_points,
+ .llseek = seq_lseek,
+ .release = single_release,
};
static struct file_operations acpi_thermal_cooling_fops = {
- .open = acpi_thermal_cooling_open_fs,
- .read = seq_read,
- .write = acpi_thermal_write_cooling_mode,
- .llseek = seq_lseek,
- .release = single_release,
+ .open = acpi_thermal_cooling_open_fs,
+ .read = seq_read,
+ .write = acpi_thermal_write_cooling_mode,
+ .llseek = seq_lseek,
+ .release = single_release,
};
static struct file_operations acpi_thermal_polling_fops = {
- .open = acpi_thermal_polling_open_fs,
- .read = seq_read,
- .write = acpi_thermal_write_polling,
- .llseek = seq_lseek,
- .release = single_release,
+ .open = acpi_thermal_polling_open_fs,
+ .read = seq_read,
+ .write = acpi_thermal_write_polling,
+ .llseek = seq_lseek,
+ .release = single_release,
};
/* --------------------------------------------------------------------------
Thermal Zone Management
-------------------------------------------------------------------------- */
-static int
-acpi_thermal_get_temperature (
- struct acpi_thermal *tz)
+static int acpi_thermal_get_temperature(struct acpi_thermal *tz)
{
- acpi_status status = AE_OK;
+ acpi_status status = AE_OK;
ACPI_FUNCTION_TRACE("acpi_thermal_get_temperature");
tz->last_temperature = tz->temperature;
- status = acpi_evaluate_integer(tz->handle, "_TMP", NULL, &tz->temperature);
+ status =
+ acpi_evaluate_integer(tz->handle, "_TMP", NULL, &tz->temperature);
if (ACPI_FAILURE(status))
return_VALUE(-ENODEV);
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Temperature is %lu dK\n", tz->temperature));
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Temperature is %lu dK\n",
+ tz->temperature));
return_VALUE(0);
}
-
-static int
-acpi_thermal_get_polling_frequency (
- struct acpi_thermal *tz)
+static int acpi_thermal_get_polling_frequency(struct acpi_thermal *tz)
{
- acpi_status status = AE_OK;
+ acpi_status status = AE_OK;
ACPI_FUNCTION_TRACE("acpi_thermal_get_polling_frequency");
if (!tz)
return_VALUE(-EINVAL);
- status = acpi_evaluate_integer(tz->handle, "_TZP", NULL, &tz->polling_frequency);
+ status =
+ acpi_evaluate_integer(tz->handle, "_TZP", NULL,
+ &tz->polling_frequency);
if (ACPI_FAILURE(status))
return_VALUE(-ENODEV);
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Polling frequency is %lu dS\n", tz->polling_frequency));
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Polling frequency is %lu dS\n",
+ tz->polling_frequency));
return_VALUE(0);
}
-
-static int
-acpi_thermal_set_polling (
- struct acpi_thermal *tz,
- int seconds)
+static int acpi_thermal_set_polling(struct acpi_thermal *tz, int seconds)
{
ACPI_FUNCTION_TRACE("acpi_thermal_set_polling");
tz->polling_frequency = seconds * 10; /* Convert value to deci-seconds */
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Polling frequency set to %lu seconds\n", tz->polling_frequency));
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Polling frequency set to %lu seconds\n",
+ tz->polling_frequency));
return_VALUE(0);
}
-
-static int
-acpi_thermal_set_cooling_mode (
- struct acpi_thermal *tz,
- int mode)
+static int acpi_thermal_set_cooling_mode(struct acpi_thermal *tz, int mode)
{
- acpi_status status = AE_OK;
- union acpi_object arg0 = {ACPI_TYPE_INTEGER};
- struct acpi_object_list arg_list = {1, &arg0};
- acpi_handle handle = NULL;
+ acpi_status status = AE_OK;
+ union acpi_object arg0 = { ACPI_TYPE_INTEGER };
+ struct acpi_object_list arg_list = { 1, &arg0 };
+ acpi_handle handle = NULL;
ACPI_FUNCTION_TRACE("acpi_thermal_set_cooling_mode");
tz->cooling_mode = mode;
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Cooling mode [%s]\n",
- mode?"passive":"active"));
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Cooling mode [%s]\n",
+ mode ? "passive" : "active"));
return_VALUE(0);
}
-
-static int
-acpi_thermal_get_trip_points (
- struct acpi_thermal *tz)
+static int acpi_thermal_get_trip_points(struct acpi_thermal *tz)
{
- acpi_status status = AE_OK;
- int i = 0;
+ acpi_status status = AE_OK;
+ int i = 0;
ACPI_FUNCTION_TRACE("acpi_thermal_get_trip_points");
/* Critical Shutdown (required) */
- status = acpi_evaluate_integer(tz->handle, "_CRT", NULL,
- &tz->trips.critical.temperature);
+ status = acpi_evaluate_integer(tz->handle, "_CRT", NULL,
+ &tz->trips.critical.temperature);
if (ACPI_FAILURE(status)) {
tz->trips.critical.flags.valid = 0;
ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "No critical threshold\n"));
return_VALUE(-ENODEV);
- }
- else {
+ } else {
tz->trips.critical.flags.valid = 1;
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found critical threshold [%lu]\n", tz->trips.critical.temperature));
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Found critical threshold [%lu]\n",
+ tz->trips.critical.temperature));
}
/* Critical Sleep (optional) */
- status = acpi_evaluate_integer(tz->handle, "_HOT", NULL, &tz->trips.hot.temperature);
+ status =
+ acpi_evaluate_integer(tz->handle, "_HOT", NULL,
+ &tz->trips.hot.temperature);
if (ACPI_FAILURE(status)) {
tz->trips.hot.flags.valid = 0;
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No hot threshold\n"));
- }
- else {
+ } else {
tz->trips.hot.flags.valid = 1;
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found hot threshold [%lu]\n", tz->trips.hot.temperature));
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found hot threshold [%lu]\n",
+ tz->trips.hot.temperature));
}
/* Passive: Processors (optional) */
- status = acpi_evaluate_integer(tz->handle, "_PSV", NULL, &tz->trips.passive.temperature);
+ status =
+ acpi_evaluate_integer(tz->handle, "_PSV", NULL,
+ &tz->trips.passive.temperature);
if (ACPI_FAILURE(status)) {
tz->trips.passive.flags.valid = 0;
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No passive threshold\n"));
- }
- else {
+ } else {
tz->trips.passive.flags.valid = 1;
- status = acpi_evaluate_integer(tz->handle, "_TC1", NULL, &tz->trips.passive.tc1);
+ status =
+ acpi_evaluate_integer(tz->handle, "_TC1", NULL,
+ &tz->trips.passive.tc1);
if (ACPI_FAILURE(status))
tz->trips.passive.flags.valid = 0;
- status = acpi_evaluate_integer(tz->handle, "_TC2", NULL, &tz->trips.passive.tc2);
+ status =
+ acpi_evaluate_integer(tz->handle, "_TC2", NULL,
+ &tz->trips.passive.tc2);
if (ACPI_FAILURE(status))
tz->trips.passive.flags.valid = 0;
- status = acpi_evaluate_integer(tz->handle, "_TSP", NULL, &tz->trips.passive.tsp);
+ status =
+ acpi_evaluate_integer(tz->handle, "_TSP", NULL,
+ &tz->trips.passive.tsp);
if (ACPI_FAILURE(status))
tz->trips.passive.flags.valid = 0;
- status = acpi_evaluate_reference(tz->handle, "_PSL", NULL, &tz->trips.passive.devices);
+ status =
+ acpi_evaluate_reference(tz->handle, "_PSL", NULL,
+ &tz->trips.passive.devices);
if (ACPI_FAILURE(status))
tz->trips.passive.flags.valid = 0;
if (!tz->trips.passive.flags.valid)
- ACPI_DEBUG_PRINT((ACPI_DB_WARN, "Invalid passive threshold\n"));
+ ACPI_DEBUG_PRINT((ACPI_DB_WARN,
+ "Invalid passive threshold\n"));
else
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found passive threshold [%lu]\n", tz->trips.passive.temperature));
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Found passive threshold [%lu]\n",
+ tz->trips.passive.temperature));
}
/* Active: Fans, etc. (optional) */
- for (i=0; i<ACPI_THERMAL_MAX_ACTIVE; i++) {
+ for (i = 0; i < ACPI_THERMAL_MAX_ACTIVE; i++) {
- char name[5] = {'_','A','C',('0'+i),'\0'};
+ char name[5] = { '_', 'A', 'C', ('0' + i), '\0' };
- status = acpi_evaluate_integer(tz->handle, name, NULL, &tz->trips.active[i].temperature);
+ status =
+ acpi_evaluate_integer(tz->handle, name, NULL,
+ &tz->trips.active[i].temperature);
if (ACPI_FAILURE(status))
break;
name[2] = 'L';
- status = acpi_evaluate_reference(tz->handle, name, NULL, &tz->trips.active[i].devices);
+ status =
+ acpi_evaluate_reference(tz->handle, name, NULL,
+ &tz->trips.active[i].devices);
if (ACPI_SUCCESS(status)) {
tz->trips.active[i].flags.valid = 1;
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found active threshold [%d]:[%lu]\n", i, tz->trips.active[i].temperature));
- }
- else
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid active threshold [%d]\n", i));
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Found active threshold [%d]:[%lu]\n",
+ i, tz->trips.active[i].temperature));
+ } else
+ ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
+ "Invalid active threshold [%d]\n",
+ i));
}
return_VALUE(0);
}
-
-static int
-acpi_thermal_get_devices (
- struct acpi_thermal *tz)
+static int acpi_thermal_get_devices(struct acpi_thermal *tz)
{
- acpi_status status = AE_OK;
+ acpi_status status = AE_OK;
ACPI_FUNCTION_TRACE("acpi_thermal_get_devices");
if (!tz)
return_VALUE(-EINVAL);
- status = acpi_evaluate_reference(tz->handle, "_TZD", NULL, &tz->devices);
+ status =
+ acpi_evaluate_reference(tz->handle, "_TZD", NULL, &tz->devices);
if (ACPI_FAILURE(status))
return_VALUE(-ENODEV);
return_VALUE(0);
}
-
-static int
-acpi_thermal_call_usermode (
- char *path)
+static int acpi_thermal_call_usermode(char *path)
{
- char *argv[2] = {NULL, NULL};
- char *envp[3] = {NULL, NULL, NULL};
+ char *argv[2] = { NULL, NULL };
+ char *envp[3] = { NULL, NULL, NULL };
ACPI_FUNCTION_TRACE("acpi_thermal_call_usermode");
/* minimal command environment */
envp[0] = "HOME=/";
envp[1] = "PATH=/sbin:/bin:/usr/sbin:/usr/bin";
-
+
call_usermodehelper(argv[0], argv, envp, 0);
return_VALUE(0);
}
-
-static int
-acpi_thermal_critical (
- struct acpi_thermal *tz)
+static int acpi_thermal_critical(struct acpi_thermal *tz)
{
- int result = 0;
- struct acpi_device *device = NULL;
+ int result = 0;
+ struct acpi_device *device = NULL;
ACPI_FUNCTION_TRACE("acpi_thermal_critical");
if (tz->temperature >= tz->trips.critical.temperature) {
ACPI_DEBUG_PRINT((ACPI_DB_WARN, "Critical trip point\n"));
tz->trips.critical.flags.enabled = 1;
- }
- else if (tz->trips.critical.flags.enabled)
+ } else if (tz->trips.critical.flags.enabled)
tz->trips.critical.flags.enabled = 0;
result = acpi_bus_get_device(tz->handle, &device);
if (result)
return_VALUE(result);
- printk(KERN_EMERG "Critical temperature reached (%ld C), shutting down.\n", KELVIN_TO_CELSIUS(tz->temperature));
- acpi_bus_generate_event(device, ACPI_THERMAL_NOTIFY_CRITICAL, tz->trips.critical.flags.enabled);
+ printk(KERN_EMERG
+ "Critical temperature reached (%ld C), shutting down.\n",
+ KELVIN_TO_CELSIUS(tz->temperature));
+ acpi_bus_generate_event(device, ACPI_THERMAL_NOTIFY_CRITICAL,
+ tz->trips.critical.flags.enabled);
acpi_thermal_call_usermode(ACPI_THERMAL_PATH_POWEROFF);
return_VALUE(0);
}
-
-static int
-acpi_thermal_hot (
- struct acpi_thermal *tz)
+static int acpi_thermal_hot(struct acpi_thermal *tz)
{
- int result = 0;
- struct acpi_device *device = NULL;
+ int result = 0;
+ struct acpi_device *device = NULL;
ACPI_FUNCTION_TRACE("acpi_thermal_hot");
if (tz->temperature >= tz->trips.hot.temperature) {
ACPI_DEBUG_PRINT((ACPI_DB_WARN, "Hot trip point\n"));
tz->trips.hot.flags.enabled = 1;
- }
- else if (tz->trips.hot.flags.enabled)
+ } else if (tz->trips.hot.flags.enabled)
tz->trips.hot.flags.enabled = 0;
result = acpi_bus_get_device(tz->handle, &device);
if (result)
return_VALUE(result);
- acpi_bus_generate_event(device, ACPI_THERMAL_NOTIFY_HOT, tz->trips.hot.flags.enabled);
+ acpi_bus_generate_event(device, ACPI_THERMAL_NOTIFY_HOT,
+ tz->trips.hot.flags.enabled);
/* TBD: Call user-mode "sleep(S4)" function */
return_VALUE(0);
}
-
-static int
-acpi_thermal_passive (
- struct acpi_thermal *tz)
+static void acpi_thermal_passive(struct acpi_thermal *tz)
{
- int result = 0;
+ int result = 1;
struct acpi_thermal_passive *passive = NULL;
- int trend = 0;
- int i = 0;
+ int trend = 0;
+ int i = 0;
ACPI_FUNCTION_TRACE("acpi_thermal_passive");
if (!tz || !tz->trips.passive.flags.valid)
- return_VALUE(-EINVAL);
+ return;
passive = &(tz->trips.passive);
* accordingly. Note that we assume symmetry.
*/
if (tz->temperature >= passive->temperature) {
- trend = (passive->tc1 * (tz->temperature - tz->last_temperature)) + (passive->tc2 * (tz->temperature - passive->temperature));
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "trend[%d]=(tc1[%lu]*(tmp[%lu]-last[%lu]))+(tc2[%lu]*(tmp[%lu]-psv[%lu]))\n",
- trend, passive->tc1, tz->temperature,
- tz->last_temperature, passive->tc2,
- tz->temperature, passive->temperature));
- tz->trips.passive.flags.enabled = 1;
+ trend =
+ (passive->tc1 * (tz->temperature - tz->last_temperature)) +
+ (passive->tc2 * (tz->temperature - passive->temperature));
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "trend[%d]=(tc1[%lu]*(tmp[%lu]-last[%lu]))+(tc2[%lu]*(tmp[%lu]-psv[%lu]))\n",
+ trend, passive->tc1, tz->temperature,
+ tz->last_temperature, passive->tc2,
+ tz->temperature, passive->temperature));
+ passive->flags.enabled = 1;
/* Heating up? */
if (trend > 0)
- for (i=0; i<passive->devices.count; i++)
- acpi_processor_set_thermal_limit(
- passive->devices.handles[i],
- ACPI_PROCESSOR_LIMIT_INCREMENT);
+ for (i = 0; i < passive->devices.count; i++)
+ acpi_processor_set_thermal_limit(passive->
+ devices.
+ handles[i],
+ ACPI_PROCESSOR_LIMIT_INCREMENT);
/* Cooling off? */
- else if (trend < 0)
- for (i=0; i<passive->devices.count; i++)
- acpi_processor_set_thermal_limit(
- passive->devices.handles[i],
- ACPI_PROCESSOR_LIMIT_DECREMENT);
+ else if (trend < 0) {
+ for (i = 0; i < passive->devices.count; i++)
+ /*
+ * assume that we are on highest
+ * freq/lowest thrott and can leave
+ * passive mode, even in error case
+ */
+ if (!acpi_processor_set_thermal_limit
+ (passive->devices.handles[i],
+ ACPI_PROCESSOR_LIMIT_DECREMENT))
+ result = 0;
+ /*
+ * Leave cooling mode, even if the temp might
+ * higher than trip point This is because some
+ * machines might have long thermal polling
+ * frequencies (tsp) defined. We will fall back
+ * into passive mode in next cycle (probably quicker)
+ */
+ if (result) {
+ passive->flags.enabled = 0;
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Disabling passive cooling, still above threshold,"
+ " but we are cooling down\n"));
+ }
+ }
+ return;
}
/*
* and avoid thrashing around the passive trip point. Note that we
* assume symmetry.
*/
- else if (tz->trips.passive.flags.enabled) {
- for (i=0; i<passive->devices.count; i++)
- result = acpi_processor_set_thermal_limit(
- passive->devices.handles[i],
- ACPI_PROCESSOR_LIMIT_DECREMENT);
- if (result == 1) {
- tz->trips.passive.flags.enabled = 0;
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Disabling passive cooling (zone is cool)\n"));
- }
+ if (!passive->flags.enabled)
+ return;
+ for (i = 0; i < passive->devices.count; i++)
+ if (!acpi_processor_set_thermal_limit
+ (passive->devices.handles[i],
+ ACPI_PROCESSOR_LIMIT_DECREMENT))
+ result = 0;
+ if (result) {
+ passive->flags.enabled = 0;
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Disabling passive cooling (zone is cool)\n"));
}
-
- return_VALUE(0);
}
-
-static int
-acpi_thermal_active (
- struct acpi_thermal *tz)
+static void acpi_thermal_active(struct acpi_thermal *tz)
{
- int result = 0;
+ int result = 0;
struct acpi_thermal_active *active = NULL;
- int i = 0;
- int j = 0;
- unsigned long maxtemp = 0;
+ int i = 0;
+ int j = 0;
+ unsigned long maxtemp = 0;
ACPI_FUNCTION_TRACE("acpi_thermal_active");
if (!tz)
- return_VALUE(-EINVAL);
-
- for (i=0; i<ACPI_THERMAL_MAX_ACTIVE; i++) {
+ return;
+ for (i = 0; i < ACPI_THERMAL_MAX_ACTIVE; i++) {
active = &(tz->trips.active[i]);
if (!active || !active->flags.valid)
break;
-
- /*
- * Above Threshold?
- * ----------------
- * If not already enabled, turn ON all cooling devices
- * associated with this active threshold.
- */
if (tz->temperature >= active->temperature) {
+ /*
+ * Above Threshold?
+ * ----------------
+ * If not already enabled, turn ON all cooling devices
+ * associated with this active threshold.
+ */
if (active->temperature > maxtemp)
- tz->state.active_index = i, maxtemp = active->temperature;
- if (!active->flags.enabled) {
- for (j = 0; j < active->devices.count; j++) {
- result = acpi_bus_set_power(active->devices.handles[j], ACPI_STATE_D0);
- if (result) {
- ACPI_DEBUG_PRINT((ACPI_DB_WARN, "Unable to turn cooling device [%p] 'on'\n", active->devices.handles[j]));
- continue;
- }
- active->flags.enabled = 1;
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Cooling device [%p] now 'on'\n", active->devices.handles[j]));
+ tz->state.active_index = i;
+ maxtemp = active->temperature;
+ if (active->flags.enabled)
+ continue;
+ for (j = 0; j < active->devices.count; j++) {
+ result =
+ acpi_bus_set_power(active->devices.
+ handles[j],
+ ACPI_STATE_D0);
+ if (result) {
+ ACPI_DEBUG_PRINT((ACPI_DB_WARN,
+ "Unable to turn cooling device [%p] 'on'\n",
+ active->devices.
+ handles[j]));
+ continue;
}
+ active->flags.enabled = 1;
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Cooling device [%p] now 'on'\n",
+ active->devices.handles[j]));
}
+ continue;
}
+ if (!active->flags.enabled)
+ continue;
/*
* Below Threshold?
* ----------------
* Turn OFF all cooling devices associated with this
* threshold.
*/
- else if (active->flags.enabled) {
- for (j = 0; j < active->devices.count; j++) {
- result = acpi_bus_set_power(active->devices.handles[j], ACPI_STATE_D3);
- if (result) {
- ACPI_DEBUG_PRINT((ACPI_DB_WARN, "Unable to turn cooling device [%p] 'off'\n", active->devices.handles[j]));
- continue;
- }
- active->flags.enabled = 0;
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Cooling device [%p] now 'off'\n", active->devices.handles[j]));
+ for (j = 0; j < active->devices.count; j++) {
+ result = acpi_bus_set_power(active->devices.handles[j],
+ ACPI_STATE_D3);
+ if (result) {
+ ACPI_DEBUG_PRINT((ACPI_DB_WARN,
+ "Unable to turn cooling device [%p] 'off'\n",
+ active->devices.handles[j]));
+ continue;
}
+ active->flags.enabled = 0;
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Cooling device [%p] now 'off'\n",
+ active->devices.handles[j]));
}
}
-
- return_VALUE(0);
}
+static void acpi_thermal_check(void *context);
-static void acpi_thermal_check (void *context);
-
-static void
-acpi_thermal_run (
- unsigned long data)
+static void acpi_thermal_run(unsigned long data)
{
struct acpi_thermal *tz = (struct acpi_thermal *)data;
if (!tz->zombie)
- acpi_os_queue_for_execution(OSD_PRIORITY_GPE,
- acpi_thermal_check, (void *) data);
+ acpi_os_queue_for_execution(OSD_PRIORITY_GPE,
+ acpi_thermal_check, (void *)data);
}
-
-static void
-acpi_thermal_check (
- void *data)
+static void acpi_thermal_check(void *data)
{
- int result = 0;
- struct acpi_thermal *tz = (struct acpi_thermal *) data;
- unsigned long sleep_time = 0;
- int i = 0;
+ int result = 0;
+ struct acpi_thermal *tz = (struct acpi_thermal *)data;
+ unsigned long sleep_time = 0;
+ int i = 0;
struct acpi_thermal_state state;
ACPI_FUNCTION_TRACE("acpi_thermal_check");
result = acpi_thermal_get_temperature(tz);
if (result)
return_VOID;
-
+
memset(&tz->state, 0, sizeof(tz->state));
-
+
/*
* Check Trip Points
* -----------------
* individual policy decides when it is exited (e.g. hysteresis).
*/
if (tz->trips.critical.flags.valid)
- state.critical |= (tz->temperature >= tz->trips.critical.temperature);
+ state.critical |=
+ (tz->temperature >= tz->trips.critical.temperature);
if (tz->trips.hot.flags.valid)
state.hot |= (tz->temperature >= tz->trips.hot.temperature);
if (tz->trips.passive.flags.valid)
- state.passive |= (tz->temperature >= tz->trips.passive.temperature);
- for (i=0; i<ACPI_THERMAL_MAX_ACTIVE; i++)
+ state.passive |=
+ (tz->temperature >= tz->trips.passive.temperature);
+ for (i = 0; i < ACPI_THERMAL_MAX_ACTIVE; i++)
if (tz->trips.active[i].flags.valid)
- state.active |= (tz->temperature >= tz->trips.active[i].temperature);
+ state.active |=
+ (tz->temperature >=
+ tz->trips.active[i].temperature);
/*
* Invoke Policy
* Again, separated from the above two to allow independent policy
* decisions.
*/
- if (tz->trips.critical.flags.enabled)
- tz->state.critical = 1;
- if (tz->trips.hot.flags.enabled)
- tz->state.hot = 1;
- if (tz->trips.passive.flags.enabled)
- tz->state.passive = 1;
- for (i=0; i<ACPI_THERMAL_MAX_ACTIVE; i++)
- if (tz->trips.active[i].flags.enabled)
- tz->state.active = 1;
+ tz->state.critical = tz->trips.critical.flags.enabled;
+ tz->state.hot = tz->trips.hot.flags.enabled;
+ tz->state.passive = tz->trips.passive.flags.enabled;
+ tz->state.active = 0;
+ for (i = 0; i < ACPI_THERMAL_MAX_ACTIVE; i++)
+ tz->state.active |= tz->trips.active[i].flags.enabled;
/*
* Calculate Sleep Time
else if (tz->polling_frequency > 0)
sleep_time = tz->polling_frequency * 100;
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s: temperature[%lu] sleep[%lu]\n",
- tz->name, tz->temperature, sleep_time));
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s: temperature[%lu] sleep[%lu]\n",
+ tz->name, tz->temperature, sleep_time));
/*
* Schedule Next Poll
if (!sleep_time) {
if (timer_pending(&(tz->timer)))
del_timer(&(tz->timer));
- }
- else {
+ } else {
if (timer_pending(&(tz->timer)))
mod_timer(&(tz->timer), (HZ * sleep_time) / 1000);
else {
- tz->timer.data = (unsigned long) tz;
+ tz->timer.data = (unsigned long)tz;
tz->timer.function = acpi_thermal_run;
tz->timer.expires = jiffies + (HZ * sleep_time) / 1000;
add_timer(&(tz->timer));
return_VOID;
}
-
/* --------------------------------------------------------------------------
FS Interface (/proc)
-------------------------------------------------------------------------- */
-static struct proc_dir_entry *acpi_thermal_dir;
+static struct proc_dir_entry *acpi_thermal_dir;
static int acpi_thermal_state_seq_show(struct seq_file *seq, void *offset)
{
- struct acpi_thermal *tz = (struct acpi_thermal *)seq->private;
+ struct acpi_thermal *tz = (struct acpi_thermal *)seq->private;
ACPI_FUNCTION_TRACE("acpi_thermal_state_seq_show");
seq_puts(seq, "state: ");
- if (!tz->state.critical && !tz->state.hot && !tz->state.passive && !tz->state.active)
+ if (!tz->state.critical && !tz->state.hot && !tz->state.passive
+ && !tz->state.active)
seq_puts(seq, "ok\n");
else {
if (tz->state.critical)
seq_puts(seq, "\n");
}
-end:
+ end:
return_VALUE(0);
}
return single_open(file, acpi_thermal_state_seq_show, PDE(inode)->data);
}
-
static int acpi_thermal_temp_seq_show(struct seq_file *seq, void *offset)
{
- int result = 0;
- struct acpi_thermal *tz = (struct acpi_thermal *)seq->private;
+ int result = 0;
+ struct acpi_thermal *tz = (struct acpi_thermal *)seq->private;
ACPI_FUNCTION_TRACE("acpi_thermal_temp_seq_show");
if (result)
goto end;
- seq_printf(seq, "temperature: %ld C\n",
- KELVIN_TO_CELSIUS(tz->temperature));
+ seq_printf(seq, "temperature: %ld C\n",
+ KELVIN_TO_CELSIUS(tz->temperature));
-end:
+ end:
return_VALUE(0);
}
return single_open(file, acpi_thermal_temp_seq_show, PDE(inode)->data);
}
-
static int acpi_thermal_trip_seq_show(struct seq_file *seq, void *offset)
{
- struct acpi_thermal *tz = (struct acpi_thermal *)seq->private;
- int i = 0;
- int j = 0;
+ struct acpi_thermal *tz = (struct acpi_thermal *)seq->private;
+ int i = 0;
+ int j = 0;
ACPI_FUNCTION_TRACE("acpi_thermal_trip_seq_show");
if (tz->trips.critical.flags.valid)
seq_printf(seq, "critical (S5): %ld C\n",
- KELVIN_TO_CELSIUS(tz->trips.critical.temperature));
+ KELVIN_TO_CELSIUS(tz->trips.critical.temperature));
if (tz->trips.hot.flags.valid)
seq_printf(seq, "hot (S4): %ld C\n",
- KELVIN_TO_CELSIUS(tz->trips.hot.temperature));
+ KELVIN_TO_CELSIUS(tz->trips.hot.temperature));
if (tz->trips.passive.flags.valid) {
- seq_printf(seq, "passive: %ld C: tc1=%lu tc2=%lu tsp=%lu devices=",
- KELVIN_TO_CELSIUS(tz->trips.passive.temperature),
- tz->trips.passive.tc1,
- tz->trips.passive.tc2,
- tz->trips.passive.tsp);
- for (j=0; j<tz->trips.passive.devices.count; j++) {
-
- seq_printf(seq, "0x%p ", tz->trips.passive.devices.handles[j]);
+ seq_printf(seq,
+ "passive: %ld C: tc1=%lu tc2=%lu tsp=%lu devices=",
+ KELVIN_TO_CELSIUS(tz->trips.passive.temperature),
+ tz->trips.passive.tc1, tz->trips.passive.tc2,
+ tz->trips.passive.tsp);
+ for (j = 0; j < tz->trips.passive.devices.count; j++) {
+
+ seq_printf(seq, "0x%p ",
+ tz->trips.passive.devices.handles[j]);
}
seq_puts(seq, "\n");
}
if (!(tz->trips.active[i].flags.valid))
break;
seq_printf(seq, "active[%d]: %ld C: devices=",
- i, KELVIN_TO_CELSIUS(tz->trips.active[i].temperature));
- for (j = 0; j < tz->trips.active[i].devices.count; j++)
+ i,
+ KELVIN_TO_CELSIUS(tz->trips.active[i].temperature));
+ for (j = 0; j < tz->trips.active[i].devices.count; j++)
seq_printf(seq, "0x%p ",
- tz->trips.active[i].devices.handles[j]);
+ tz->trips.active[i].devices.handles[j]);
seq_puts(seq, "\n");
}
-end:
+ end:
return_VALUE(0);
}
}
static ssize_t
-acpi_thermal_write_trip_points (
- struct file *file,
- const char __user *buffer,
- size_t count,
- loff_t *ppos)
+acpi_thermal_write_trip_points(struct file *file,
+ const char __user * buffer,
+ size_t count, loff_t * ppos)
{
- struct seq_file *m = (struct seq_file *)file->private_data;
- struct acpi_thermal *tz = (struct acpi_thermal *)m->private;
+ struct seq_file *m = (struct seq_file *)file->private_data;
+ struct acpi_thermal *tz = (struct acpi_thermal *)m->private;
- char *limit_string;
- int num, critical, hot, passive;
- int *active;
- int i = 0;
+ char *limit_string;
+ int num, critical, hot, passive;
+ int *active;
+ int i = 0;
ACPI_FUNCTION_TRACE("acpi_thermal_write_trip_points");
limit_string = kmalloc(ACPI_THERMAL_MAX_LIMIT_STR_LEN, GFP_KERNEL);
- if(!limit_string)
+ if (!limit_string)
return_VALUE(-ENOMEM);
memset(limit_string, 0, ACPI_THERMAL_MAX_LIMIT_STR_LEN);
- active = kmalloc(ACPI_THERMAL_MAX_ACTIVE *sizeof(int), GFP_KERNEL);
- if(!active)
+ active = kmalloc(ACPI_THERMAL_MAX_ACTIVE * sizeof(int), GFP_KERNEL);
+ if (!active)
return_VALUE(-ENOMEM);
if (!tz || (count > ACPI_THERMAL_MAX_LIMIT_STR_LEN - 1)) {
count = -EINVAL;
goto end;
}
-
+
if (copy_from_user(limit_string, buffer, count)) {
ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid data\n"));
count = -EFAULT;
goto end;
}
-
+
limit_string[count] = '\0';
num = sscanf(limit_string, "%d:%d:%d:%d:%d:%d:%d:%d:%d:%d:%d:%d:%d",
- &critical, &hot, &passive,
- &active[0], &active[1], &active[2], &active[3], &active[4],
- &active[5], &active[6], &active[7], &active[8], &active[9]);
- if(!(num >=5 && num < (ACPI_THERMAL_MAX_ACTIVE + 3))) {
+ &critical, &hot, &passive,
+ &active[0], &active[1], &active[2], &active[3], &active[4],
+ &active[5], &active[6], &active[7], &active[8],
+ &active[9]);
+ if (!(num >= 5 && num < (ACPI_THERMAL_MAX_ACTIVE + 3))) {
ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid data format\n"));
count = -EINVAL;
goto end;
break;
tz->trips.active[i].temperature = CELSIUS_TO_KELVIN(active[i]);
}
-
-end:
+
+ end:
kfree(active);
kfree(limit_string);
return_VALUE(count);
}
-
static int acpi_thermal_cooling_seq_show(struct seq_file *seq, void *offset)
{
- struct acpi_thermal *tz = (struct acpi_thermal *)seq->private;
+ struct acpi_thermal *tz = (struct acpi_thermal *)seq->private;
ACPI_FUNCTION_TRACE("acpi_thermal_cooling_seq_show");
seq_puts(seq, "<setting not supported>\n");
}
- if ( tz->cooling_mode == ACPI_THERMAL_MODE_CRITICAL )
+ if (tz->cooling_mode == ACPI_THERMAL_MODE_CRITICAL)
seq_printf(seq, "cooling mode: critical\n");
else
seq_printf(seq, "cooling mode: %s\n",
- tz->cooling_mode?"passive":"active");
+ tz->cooling_mode ? "passive" : "active");
-end:
+ end:
return_VALUE(0);
}
static int acpi_thermal_cooling_open_fs(struct inode *inode, struct file *file)
{
return single_open(file, acpi_thermal_cooling_seq_show,
- PDE(inode)->data);
+ PDE(inode)->data);
}
static ssize_t
-acpi_thermal_write_cooling_mode (
- struct file *file,
- const char __user *buffer,
- size_t count,
- loff_t *ppos)
+acpi_thermal_write_cooling_mode(struct file *file,
+ const char __user * buffer,
+ size_t count, loff_t * ppos)
{
- struct seq_file *m = (struct seq_file *)file->private_data;
- struct acpi_thermal *tz = (struct acpi_thermal *)m->private;
- int result = 0;
- char mode_string[12] = {'\0'};
+ struct seq_file *m = (struct seq_file *)file->private_data;
+ struct acpi_thermal *tz = (struct acpi_thermal *)m->private;
+ int result = 0;
+ char mode_string[12] = { '\0' };
ACPI_FUNCTION_TRACE("acpi_thermal_write_cooling_mode");
if (copy_from_user(mode_string, buffer, count))
return_VALUE(-EFAULT);
-
+
mode_string[count] = '\0';
-
- result = acpi_thermal_set_cooling_mode(tz,
- simple_strtoul(mode_string, NULL, 0));
+
+ result = acpi_thermal_set_cooling_mode(tz,
+ simple_strtoul(mode_string, NULL,
+ 0));
if (result)
return_VALUE(result);
return_VALUE(count);
}
-
static int acpi_thermal_polling_seq_show(struct seq_file *seq, void *offset)
{
- struct acpi_thermal *tz = (struct acpi_thermal *)seq->private;
+ struct acpi_thermal *tz = (struct acpi_thermal *)seq->private;
ACPI_FUNCTION_TRACE("acpi_thermal_polling_seq_show");
}
seq_printf(seq, "polling frequency: %lu seconds\n",
- (tz->polling_frequency / 10));
+ (tz->polling_frequency / 10));
-end:
+ end:
return_VALUE(0);
}
static int acpi_thermal_polling_open_fs(struct inode *inode, struct file *file)
{
return single_open(file, acpi_thermal_polling_seq_show,
- PDE(inode)->data);
+ PDE(inode)->data);
}
static ssize_t
-acpi_thermal_write_polling (
- struct file *file,
- const char __user *buffer,
- size_t count,
- loff_t *ppos)
+acpi_thermal_write_polling(struct file *file,
+ const char __user * buffer,
+ size_t count, loff_t * ppos)
{
- struct seq_file *m = (struct seq_file *)file->private_data;
- struct acpi_thermal *tz = (struct acpi_thermal *)m->private;
- int result = 0;
- char polling_string[12] = {'\0'};
- int seconds = 0;
+ struct seq_file *m = (struct seq_file *)file->private_data;
+ struct acpi_thermal *tz = (struct acpi_thermal *)m->private;
+ int result = 0;
+ char polling_string[12] = { '\0' };
+ int seconds = 0;
ACPI_FUNCTION_TRACE("acpi_thermal_write_polling");
if (!tz || (count > sizeof(polling_string) - 1))
return_VALUE(-EINVAL);
-
+
if (copy_from_user(polling_string, buffer, count))
return_VALUE(-EFAULT);
-
+
polling_string[count] = '\0';
seconds = simple_strtoul(polling_string, NULL, 0);
-
+
result = acpi_thermal_set_polling(tz, seconds);
if (result)
return_VALUE(result);
return_VALUE(count);
}
-
-static int
-acpi_thermal_add_fs (
- struct acpi_device *device)
+static int acpi_thermal_add_fs(struct acpi_device *device)
{
- struct proc_dir_entry *entry = NULL;
+ struct proc_dir_entry *entry = NULL;
ACPI_FUNCTION_TRACE("acpi_thermal_add_fs");
if (!acpi_device_dir(device)) {
acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device),
- acpi_thermal_dir);
+ acpi_thermal_dir);
if (!acpi_device_dir(device))
return_VALUE(-ENODEV);
acpi_device_dir(device)->owner = THIS_MODULE;
/* 'state' [R] */
entry = create_proc_entry(ACPI_THERMAL_FILE_STATE,
- S_IRUGO, acpi_device_dir(device));
+ S_IRUGO, acpi_device_dir(device));
if (!entry)
ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "Unable to create '%s' fs entry\n",
- ACPI_THERMAL_FILE_STATE));
+ "Unable to create '%s' fs entry\n",
+ ACPI_THERMAL_FILE_STATE));
else {
entry->proc_fops = &acpi_thermal_state_fops;
entry->data = acpi_driver_data(device);
/* 'temperature' [R] */
entry = create_proc_entry(ACPI_THERMAL_FILE_TEMPERATURE,
- S_IRUGO, acpi_device_dir(device));
+ S_IRUGO, acpi_device_dir(device));
if (!entry)
ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "Unable to create '%s' fs entry\n",
- ACPI_THERMAL_FILE_TEMPERATURE));
+ "Unable to create '%s' fs entry\n",
+ ACPI_THERMAL_FILE_TEMPERATURE));
else {
entry->proc_fops = &acpi_thermal_temp_fops;
entry->data = acpi_driver_data(device);
/* 'trip_points' [R/W] */
entry = create_proc_entry(ACPI_THERMAL_FILE_TRIP_POINTS,
- S_IFREG|S_IRUGO|S_IWUSR, acpi_device_dir(device));
+ S_IFREG | S_IRUGO | S_IWUSR,
+ acpi_device_dir(device));
if (!entry)
ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "Unable to create '%s' fs entry\n",
- ACPI_THERMAL_FILE_TRIP_POINTS));
+ "Unable to create '%s' fs entry\n",
+ ACPI_THERMAL_FILE_TRIP_POINTS));
else {
entry->proc_fops = &acpi_thermal_trip_fops;
entry->data = acpi_driver_data(device);
/* 'cooling_mode' [R/W] */
entry = create_proc_entry(ACPI_THERMAL_FILE_COOLING_MODE,
- S_IFREG|S_IRUGO|S_IWUSR, acpi_device_dir(device));
+ S_IFREG | S_IRUGO | S_IWUSR,
+ acpi_device_dir(device));
if (!entry)
ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "Unable to create '%s' fs entry\n",
- ACPI_THERMAL_FILE_COOLING_MODE));
+ "Unable to create '%s' fs entry\n",
+ ACPI_THERMAL_FILE_COOLING_MODE));
else {
entry->proc_fops = &acpi_thermal_cooling_fops;
entry->data = acpi_driver_data(device);
/* 'polling_frequency' [R/W] */
entry = create_proc_entry(ACPI_THERMAL_FILE_POLLING_FREQ,
- S_IFREG|S_IRUGO|S_IWUSR, acpi_device_dir(device));
+ S_IFREG | S_IRUGO | S_IWUSR,
+ acpi_device_dir(device));
if (!entry)
ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "Unable to create '%s' fs entry\n",
- ACPI_THERMAL_FILE_POLLING_FREQ));
+ "Unable to create '%s' fs entry\n",
+ ACPI_THERMAL_FILE_POLLING_FREQ));
else {
entry->proc_fops = &acpi_thermal_polling_fops;
entry->data = acpi_driver_data(device);
return_VALUE(0);
}
-
-static int
-acpi_thermal_remove_fs (
- struct acpi_device *device)
+static int acpi_thermal_remove_fs(struct acpi_device *device)
{
ACPI_FUNCTION_TRACE("acpi_thermal_remove_fs");
return_VALUE(0);
}
-
/* --------------------------------------------------------------------------
Driver Interface
-------------------------------------------------------------------------- */
-static void
-acpi_thermal_notify (
- acpi_handle handle,
- u32 event,
- void *data)
+static void acpi_thermal_notify(acpi_handle handle, u32 event, void *data)
{
- struct acpi_thermal *tz = (struct acpi_thermal *) data;
- struct acpi_device *device = NULL;
+ struct acpi_thermal *tz = (struct acpi_thermal *)data;
+ struct acpi_device *device = NULL;
ACPI_FUNCTION_TRACE("acpi_thermal_notify");
break;
default:
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Unsupported event [0x%x]\n", event));
+ "Unsupported event [0x%x]\n", event));
break;
}
return_VOID;
}
-
-static int
-acpi_thermal_get_info (
- struct acpi_thermal *tz)
+static int acpi_thermal_get_info(struct acpi_thermal *tz)
{
- int result = 0;
+ int result = 0;
ACPI_FUNCTION_TRACE("acpi_thermal_get_info");
/* Set the cooling mode [_SCP] to active cooling (default) */
result = acpi_thermal_set_cooling_mode(tz, ACPI_THERMAL_MODE_ACTIVE);
- if (!result)
+ if (!result)
tz->flags.cooling_mode = 1;
- else {
+ else {
/* Oh,we have not _SCP method.
- Generally show cooling_mode by _ACx, _PSV,spec 12.2*/
+ Generally show cooling_mode by _ACx, _PSV,spec 12.2 */
tz->flags.cooling_mode = 0;
- if ( tz->trips.active[0].flags.valid && tz->trips.passive.flags.valid ) {
- if ( tz->trips.passive.temperature > tz->trips.active[0].temperature )
+ if (tz->trips.active[0].flags.valid
+ && tz->trips.passive.flags.valid) {
+ if (tz->trips.passive.temperature >
+ tz->trips.active[0].temperature)
tz->cooling_mode = ACPI_THERMAL_MODE_ACTIVE;
- else
+ else
tz->cooling_mode = ACPI_THERMAL_MODE_PASSIVE;
- } else if ( !tz->trips.active[0].flags.valid && tz->trips.passive.flags.valid ) {
+ } else if (!tz->trips.active[0].flags.valid
+ && tz->trips.passive.flags.valid) {
tz->cooling_mode = ACPI_THERMAL_MODE_PASSIVE;
- } else if ( tz->trips.active[0].flags.valid && !tz->trips.passive.flags.valid ) {
+ } else if (tz->trips.active[0].flags.valid
+ && !tz->trips.passive.flags.valid) {
tz->cooling_mode = ACPI_THERMAL_MODE_ACTIVE;
} else {
/* _ACx and _PSV are optional, but _CRT is required */
return_VALUE(0);
}
-
-static int
-acpi_thermal_add (
- struct acpi_device *device)
+static int acpi_thermal_add(struct acpi_device *device)
{
- int result = 0;
- acpi_status status = AE_OK;
- struct acpi_thermal *tz = NULL;
+ int result = 0;
+ acpi_status status = AE_OK;
+ struct acpi_thermal *tz = NULL;
ACPI_FUNCTION_TRACE("acpi_thermal_add");
acpi_thermal_check(tz);
status = acpi_install_notify_handler(tz->handle,
- ACPI_DEVICE_NOTIFY, acpi_thermal_notify, tz);
+ ACPI_DEVICE_NOTIFY,
+ acpi_thermal_notify, tz);
if (ACPI_FAILURE(status)) {
ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "Error installing notify handler\n"));
+ "Error installing notify handler\n"));
result = -ENODEV;
goto end;
}
printk(KERN_INFO PREFIX "%s [%s] (%ld C)\n",
- acpi_device_name(device), acpi_device_bid(device),
- KELVIN_TO_CELSIUS(tz->temperature));
+ acpi_device_name(device), acpi_device_bid(device),
+ KELVIN_TO_CELSIUS(tz->temperature));
-end:
+ end:
if (result) {
acpi_thermal_remove_fs(device);
kfree(tz);
return_VALUE(result);
}
-
-static int
-acpi_thermal_remove (
- struct acpi_device *device,
- int type)
+static int acpi_thermal_remove(struct acpi_device *device, int type)
{
- acpi_status status = AE_OK;
- struct acpi_thermal *tz = NULL;
+ acpi_status status = AE_OK;
+ struct acpi_thermal *tz = NULL;
ACPI_FUNCTION_TRACE("acpi_thermal_remove");
if (!device || !acpi_driver_data(device))
return_VALUE(-EINVAL);
- tz = (struct acpi_thermal *) acpi_driver_data(device);
+ tz = (struct acpi_thermal *)acpi_driver_data(device);
/* avoid timer adding new defer task */
tz->zombie = 1;
del_timer_sync(&(tz->timer));
status = acpi_remove_notify_handler(tz->handle,
- ACPI_DEVICE_NOTIFY, acpi_thermal_notify);
+ ACPI_DEVICE_NOTIFY,
+ acpi_thermal_notify);
if (ACPI_FAILURE(status))
ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "Error removing notify handler\n"));
+ "Error removing notify handler\n"));
/* Terminate policy */
- if (tz->trips.passive.flags.valid
- && tz->trips.passive.flags.enabled) {
+ if (tz->trips.passive.flags.valid && tz->trips.passive.flags.enabled) {
tz->trips.passive.flags.enabled = 0;
acpi_thermal_passive(tz);
}
if (tz->trips.active[0].flags.valid
- && tz->trips.active[0].flags.enabled) {
+ && tz->trips.active[0].flags.enabled) {
tz->trips.active[0].flags.enabled = 0;
acpi_thermal_active(tz);
}
return_VALUE(0);
}
-
-static int __init
-acpi_thermal_init (void)
+static int __init acpi_thermal_init(void)
{
- int result = 0;
+ int result = 0;
ACPI_FUNCTION_TRACE("acpi_thermal_init");
return_VALUE(0);
}
-
-static void __exit
-acpi_thermal_exit (void)
+static void __exit acpi_thermal_exit(void)
{
ACPI_FUNCTION_TRACE("acpi_thermal_exit");
return_VOID;
}
-
module_init(acpi_thermal_init);
module_exit(acpi_thermal_exit);
git://git.onelab.eu / linux-2.6.git / blobdiff